Restoration & Modification Projects > Restoration Projects
The DEMONX 1970 vert project Pt2
demonx:
Spent a heap more time on the rear end today fixing up some sloppy work I'd done. I'm still not happy with it and need to go back later and do a few tiny things.
It's a real pain in the butt trying to get the lines back into the rear taillight surrounds. When I started it was all cracked bog that I had to remove with a heat gun. I prob should have just bought a new rear end and glassed it in! Would've been so much quicker/easier.
69 DIRTY RAT:
Your doing some nice work there demonx!
demonx:
Over the last couple weekends I've got my butt out there again trying to finish off the door gaps and some other little marks on the rear quarters.
This time I took a couple of "before pics".
Even though the doors were lines up the best I could so the biggest percentage of the door was inline, the top line was out by a mill or two. You can see in this first pic.
Also even though the majority of the door gap was good you can see in this pic the edge needed just a little bot of help.
After sanding it back with 80 grit so theres something for the PPG fibreglass filler to grap onto I spread a generous amount across the area.
Then block sand it back to this:
The fronts didn't really need doing, but I figured I'd give them the same treatment just in case there was anything not quite visable to the eye.
You can see in this pic the fronts were no-where near as bad as the rear.
Just hitting a few spots that need some extra attention before the whole area gets a spray with thick primer which I'll block back.
When I was doing the rear quarter panels I noticed a bit in the back that I'd forgotten to go back and finish. It was a section where the fibreglass had gone brittle, so instead of bogging over it I grinded it out and made a fibreglass patch.
demonx:
Ok, so I finished all the body work on the rear end.
Yesterday I block sanded the complete rear from door to door, sprayed a layer of epoxy (to help adhesion) and then left it for an hour or so before spraying a couple coats of poly filler.
Well - here is were I ran into some trouble. I had read and re read the tech sheet for the P.E Filler spray. It said 30 to 45 psi with a tip size of 2.0 to 2.5
So I mix up a full tin of the P.E. spray as most high b fill products I've used before have a very crappy coverage ratio, so I figured I'd use a full tin easily, then while that's activating I build up my gun with a 2.5 tip and give it a test spray. Seems fine for a sec and then I realise this stuff cannot get through the 2.5 tip, I needed something bigger. Made a rush phone call to my brother and the biggest tip he had was also 2.5, but he had a 3.5 needle but no cap or tip to match it.
Heres where we got dodgy! We got a old scrappy tip, drilled it out to 3.25 then drilled a old crappy cap out to 3.5 and gave a test spray with water. Seemed to seal, seemed to make a fan.
So I rush home and spray the back end of the car with the dodgiest spray gun ever. If you think you've seen bad spray jobs you ain't seen nothing! This gun was splattering like crazy but I managed to lay out two thick coats ready for a guide coat and to block right back ready for primer and color. Wont be too long now.
demonx:
Heres the P.E. Polyester spray. It's a PPG product (not a primer) that I'm using as a high fill instead of using a high fill primer. This way I can block the crap out of it and not have a crappy high build primer on my car. This will be guide coated and blocked, then sprayed with a prima primer. Yes it's more layers and more work, but it's the process that PPG tech department recommend for a Corvette.
Heres a heavier than normal guide coat layer. It's some cheap 2k that I picked up 4lt of for next to nothing as the color was mixed wrong, so I can waste it and not feel the pinch in the wallet! Since the Orange is a nice contrast to any primer colors it's perfect for me to spray on a full layer and use it as a guide coat for my final block sand. For anyone that doesn't know what a guide coat is, you spray a color over your primer before you block sand and anywhere that you see color left you know it's not sanded properly yet which helps you to eliminate grooves and pits and all sorts of things that you don't notice and that will look horrible once the color and clear is on the car... Normally it's just a mist of color, but sometimes if it's just a mist you can still miss areas and since a corvette has so many curves and since I've done so much fibreglass repair work, I don't mind using a full coverage for a guide coat just to be sure I get everything as smooth as I can.
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